Fire grate with movable hollow fire bars



Feb. 12, '1929. v 1,701,613

A. A. GOLOVTCHIKOFF FIRE GRATIS WITH MOVABLE HOLLOW FIRE BARS FLlgd Feb.4, 1925 Y 2 Sheets-Sheet 1 Fi .2. m f

OOOOOOOOOOOOOOOOOOOOOC O I INVENTOR MMLHMJ l Feb. 12, 1929. 1,701,613

A. A. GOLOVTCHIKOFF FIRE GRATE WITH MOVABLE HOLLOW FIRE BARSFi1ed-Feb14, 1925 2 Sheets-Sheet 2 Fig.6.

' A TTURNEYS Fatented Feb. 12, 1929.

UNITED srA,

ES en-r OFFICE ALEXANDER ALEXANDROVITCH GGIJOV TCI-IIKQFF, 0FTGKYOdu-ka, JAPAN, ASSIGIFOR OF ONE-HALF TO SHUN ICE-II 0N0 OFTQKYQJAPAN.

FIR-E GRAIE WITH MOVABLE HOLLOW FIRE BARS.

Application filed February This invention relates to a firegrate withmovable hollow fire-bar's wherein each hollow fire-bar is provided withsmall openings in its bottom surface allowing air to enter into acombustion chamber under the fir grate. Each hollow fire-bar is furtherprovidedwith a trunnion enteringinto an opening of the common cast ironlever which makes it possible to move said trunnion in a circularsidewise movement. Fire-bars thus made are set in iron boxes at theirends so that the bottom plate of the box is at the same time afoundation for the fire-bar's. These boxes are fastened in the brickwork and have at their back side apertures which are connected eitherwith the outward air or with the air canals ofthe stove.

This invention has for its object to provide a fire-grate which isdesigned mainly for stoves with reversed draught in order to get hot airunder the fire-grate for the pur pose of reburning the gases which havenot. been burnt completely in the heatmg device.

A further object of the invention relates to a most convenient typeofthe fire-grate for cleaning away the ashes and dross.

One embodiment of this invention is illustrated by way of examplein theaccompanying drawings in which 1 Fig. 1 is a sectional elevation of theiregrate along the line 11 of Fig. 3.

Fig. 2 is a horizontal section of the lirehar on the line 22 of Fig. 1.

Fig. 3 is a plan view of the fire-grate.

Fig. 4 is a lateral section of the fire-grate along the line 47- 1of'Fig. 3.

Fig. 5 is Fig. 3.

Fig. 6 is a front View of the fire-grate from the left hand side of Fig.3.

Fig. 7 is a cross section of the fire-grate. along the line 77 of Fig.3.

As shown in the figures, the fire-grate consists of hollow fire-bars 1which have small openings 2 at the bottom surfaces and are placed intotwo cast iron boxes 4 and 4.

For this object the bottom surface of the box is casted with halfcylindrical grooves into which each cylindrical end 3 of the firebar isresting. Everyfire-bar has an angle shaped point 5 at the end and theends of these points enter into the opening 7 ofthe common cast 1ronplate 6. The plate 15 ro tated partially to and fro according to thereciprocal motion of said plate by means of the same along the line 55of 4, 1925. Serial. No. 6,845.

the projecting handle 8 outside of the stove. In order to avoid fuelfalling into the boxes'e and i and to make same air-tight, cast ironwalls 9 and 9 are fitted slid-ably to inner sides of said boxes from theside of the heating device.

The cast iron platcfi passes through the brick work along pipes 10 and10( of rectanbottom, 0 enin s 2 is directednnder the P 1 9 fire-grate inthe heated condition effecting the complete combustion of unburned gaseswhich are caused by reversed draught.

Claims 7 1. In a grate, a series of parallel cylindrical hollow firebars having both ends open and a series of perforations in the bottom ofeach bar, the ends of said bars resting in cast-iron boxes having semioylindrical respectively at q grooves on the bottoms thereof to receivethe ends of said fire bars each fire bar being provided. with an angularupright member placed above the end thereof, said members resting in acast-iron plate fitted in one of said boxes and means for reciprocatingsaid plate. I r

2. In a grate, a series of parallel hollow fire bars having both endsopen and a series of perforations in the bottom of each bar, the ends ofsaid bars resting in cast-iron boxes having semi-cylindrical grooves onthe bottoms thereof to receive the ends of said fire bars, each fire barhaving an angular member on the end thereof, said'memhere terminating ina cast-iron plate fitted in one of saidboxes and a handle on said plateon the outside of saidbox to permit the simultaneous reciprocationof-allof said bars.

8. In a grate, a series of parallel fire bars having both ends open anda series of perforations in the bottom of each bar, the ends of saidbars resting in cast-iron boxes having semi-cylindrical grooves onhollow the bottoms thereof to receive the ends of said bars, said endsopening lnto said cast- 11'011 boxes, one end of each fire bar belngfitted with a pointed upright member rest ing in a cast-iron platefitted in one of said boxes and a handle on said plate so that all ofsaid bars may be simultaneously re- ALEXKNDER.IALEXANDRO'VITCHGOLOVTCHIKOFF.

